Overview
The TL16C552FNR, produced by Texas Instruments, is an enhanced dual-channel version of the popular TL16C550 asynchronous communications element (ACE). This device serves two serial input/output interfaces simultaneously in microcomputer or microprocessor-based systems. It performs serial-to-parallel conversion on data characters received from peripheral devices or modems and parallel-to-serial conversion on data characters transmitted by the CPU. The TL16C552FNR is designed to be IBM PC/AT compatible and provides a fully bidirectional parallel data port that supports the parallel Centronics-type printer, making it a versatile component for various communication needs.
Key Specifications
| Specification | Value |
|---|---|
| Package | 68-pin PLCC (FN) |
| Operating Temperature Range | 0 to 70°C |
| Power Supply | 5 V ±5% |
| FIFO Size | 16 bytes per channel |
| Character Length | 5-, 6-, 7-, or 8-bit characters |
| Parity Bit Generation and Detection | Even-, Odd-, or No-Parity |
| Stop Bit Generation | 1-, 1 1/2-, or 2-stop bits |
| Modem Control Signals | Individual modem control signals for each channel |
Key Features
- IBM PC/AT compatible
- Two TL16C550 ACEs integrated
- Enhanced bidirectional printer port supporting parallel Centronics-type printer
- 16-byte FIFOs to reduce CPU interrupts
- Independent control of transmit, receive, line status, and data set interrupts on each channel
- Programmable serial interface characteristics for each channel
- 3-state TTL drive for the data and control bus on each channel
- Hardware and software compatible with TL16C452
Applications
The TL16C552FNR is suitable for use in microcomputer or microprocessor-based systems that require multiple serial and parallel communication interfaces. It is particularly useful in systems that need to support both serial and parallel communication protocols, such as in legacy computer systems, industrial control systems, and other embedded systems where compatibility with IBM PC/AT standards is necessary.
Q & A
- What is the TL16C552FNR?
The TL16C552FNR is an enhanced dual-channel asynchronous communications element (ACE) produced by Texas Instruments.
- What are the key features of the TL16C552FNR?
It includes two TL16C550 ACEs, an enhanced bidirectional printer port, 16-byte FIFOs, and programmable serial interface characteristics.
- Is the TL16C552FNR compatible with IBM PC/AT systems?
Yes, it is designed to be IBM PC/AT compatible.
- What types of parity and stop bits does the TL16C552FNR support?
It supports even-, odd-, or no-parity bits and 1-, 1 1/2-, or 2-stop bits.
- What is the power supply requirement for the TL16C552FNR?
The power supply requirement is 5 V ±5%.
- How many FIFOs does each channel have?
Each channel has a 16-byte FIFO.
- What is the operating temperature range of the TL16C552FNR?
The operating temperature range is 0 to 70°C.
- What type of package does the TL16C552FNR come in?
It comes in a 68-pin PLCC (FN) package.
- Does the TL16C552FNR support DMA signaling?
Yes, it supports DMA signaling with two modes available.
- What is the purpose of the parallel data port in the TL16C552FNR?
The parallel data port fully supports the parallel Centronics-type printer.
